January 2 2011 5:22:44.128 PM
DQED_PRB4
FORTRAN90 version
A test for DQED
This example uses reverse communication.
The stable isotope problem for the alligator.
We assume an alligator has 6 kinds of prey, and
that the concentrations of isotopic C13 and N15
are known in the prey and in the alligator.
We want to determine dietary proportions X1 through X6
so that the isotope values in the alligator can
be explained
in terms of how much of what prey it eats.
Our model:
(C_All) = (C1 C2 C3 C4 C5 C6 ) * (X1 X2 X3 X4 X5 X6)'
(N_All) = (N1 N2 N3 N4 N5 N6 )
Our computed answer X:
0.00000
0.335465
0.186226
0.00000
0.351095
0.127213
The residual of the fitted data, FNORM = 0.366205E-14
Sum of variables = 1.00000
Number of model evaluations NITERS = 3
DQED output flag IGO = 2
DQED_PRB4
Normal end of execution.
January 2 2011 5:22:44.129 PM